Heavy Flickering of the GH Canvas after 8.0.23185 update

After updating to tonight WIP [8.0.23185.16306, 2023-07-04]
When moving the GH Canvas, there is a [new] flickering affect that is very unpleasant for the eyes.
One would get an headache very quickly…

Or is it just a glitch on my [new] machine?
It very much looks like a new Metal bug…?

thanks a lot
Akash

What does the SystemInfo for this machine look like, and what are the steps to reproduce the problem?

FWIW, on my Intel/AMD MBP, I’m not seeing any flickering on the GH canvas.

Hi @John_Brock

[Yes I wouldn’t expect it to show on an intel Machine.]

Since posting, Iv’e updated to the [secondary] WIP build came out this morning : 8.0.23186

The issue seems a little bit less pronounced on it then last night build, but it still significantly there. Better described as the visual affect of the components on the canvas becoming blurred [and a bit flickering too] when panning the canvas.

System info:

Summary

Rhino 8 SR0 2023-7-5 (Rhino WIP, 8.0.23186.12306, Git hash:master @ a1ea879a58479b90068dee6bbb99c5b5c1622775)
License type: Commercial, build 2023-07-05
License details: Cloud Zoo
Expires on: 2023-08-19

Apple macOS Version 13.4.1 (Build 22F82) (Physical RAM: 96Gb)
Mac Model Identifier: Mac14,6
Language: en-TH (MacOS default)

Apple M2 Max (OpenGL ver:4.1 Metal - 83.1)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: Apple
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 72 GB
Graphics: Apple M2 Max
Displays: Unknown (255dpi 2x)

Metal GPU Family Apple 7
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
Apple M2 Max
Color LCD (1728 x 1117 @ 120.00Hz)

USB devices
Generic: USB3.0 Card Reader
VLI Inc.: USB 2.0 BILLBOARD
Wacom Co.,Ltd.: Wacom Intuos Pro M
3Dconnexion: SpaceMouse Enterprise
VIA Labs, Inc. : USB Billboard Device

Bluetooth devices
None

Third party kernel extensions
None

Third party plugins
/usr/lib/swift/libswiftCore.dylib
/usr/lib/swift/libswiftCoreFoundation.dylib
/usr/lib/swift/libswiftDarwin.dylib
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/usr/lib/swift/libswiftIOKit.dylib
/usr/lib/swift/libswiftObjectiveC.dylib
/usr/lib/swift/libswiftXPC.dylib
/usr/lib/swift/libswift_Concurrency.dylib
/usr/lib/swift/libswift_StringProcessing.dylib
/usr/lib/swift/libswiftos.dylib
/usr/lib/swift/libswift_RegexParser.dylib
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/usr/lib/swift/libswiftMapKit.dylib
/usr/lib/swift/libswiftModelIO.dylib
/usr/lib/swift/libswiftSceneKit.dylib
/Users/akashlotan/.rhinocode/python3.9-30/libpython3.9.dylib
/Users/akashlotan/.rhinocode/python3.9-30/lib/python3.9/lib-dynload/_heapq.cpython-39-darwin.so
/Users/akashlotan/Library/Application Support/McNeel/Rhinoceros/MacPlugIns/bella_rhino.rhp/libbella_dotnet_native.dylib
/Users/akashlotan/Library/Application Support/McNeel/Rhinoceros/packages/8.0/IntelDenoiser/0.6.7/libtbb.12.dylib
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/usr/lib/log/liblog_network.dylib

Rhino plugins that do not ship with Rhino
/Users/akashlotan/Library/Application Support/McNeel/Rhinoceros/MacPlugIns/bella_rhino.rhp “Bella” 23.3.0.0
/Applications/RhinoWIP.app/Contents/PlugIns/import_modelio_macos.rhp “Model IO Import” 8.0.23186.1002
/Users/akashlotan/Library/Application Support/McNeel/Rhinoceros/packages/8.0/IntelDenoiser/0.6.7/IntelDenoiser.Mac.rhp “IntelDenoiser.Mac” 1.0.0.0

Rhino plugins that ship with Rhino
/Applications/RhinoWIP.app/Contents/PlugIns/MPlane.rhp “MPlane” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Import_GTS.rhp “GTS Triangle Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_VRML.rhp “VRML/X3D Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/MeshFromPoints.rhp “MeshFromPoints” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_STL.rhp “STL Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_3MF.rhp “import_3MF” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/export_XAML.rhp “export_xaml” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/ShrinkWrap.rhp “ShrinkWrap” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/Export_CD.rhp “Cult3D Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_PDF.rhp “PDFReader” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Import_OBJ.rhp “Import_OBJ” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/Export_XGL.rhp “XGL Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/SectionTools.rhp “SectionTools” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_IGES.rhp “IGES Import Plug-in” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Import_DGN.rhp “MicroStation file import: import_DGN” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Export_X_T.rhp “Parasolid Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRoslyn.rhp “RhinoRoslyn” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/RhinoBonusTools.rhp “Rhino Bonus Tools” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Export_CSV.rhp “Comma Separated Value Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_FBX.rhp “Import_FBX” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Import_SLC.rhp “SLC Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_FBX.rhp “Export_FBX” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_AI.rhp “Adobe Illustrator Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/import_VDA.rhp “VDA Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_Points.rhp “Points Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_SLC.rhp “SLC Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_Points.rhp “Points Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Export_RAW.rhp “Raw Triangles Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Import_WAMIT.rhp “WAMIT import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_3DS.rhp “3D Studio Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Import_X.rhp “X Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_VDA.rhp “VDA Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/AnimationTools.rhp “AnimationTools” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/import_STL.rhp “STL Import” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/Export_UDO.rhp “Moray Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Export_WAMIT.rhp “WAMIT Export” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/SolidTools.rhp “SolidTools” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_SKP.rhp “SketchUp Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/Export_POV.rhp “POV-Ray Export” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_LWO.rhp “Lightwave Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/CreaseAngle.rhp “CreaseAngle” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_ACAD.rhp “AutoCAD file import: import_ACAD” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_USD.rhp “Export USD” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Import_SVG.rhp “Import_SVG” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 8.0.23186.12306
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/Applications/RhinoWIP.app/Contents/PlugIns/import_VRML.rhp “VRML Import” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/RhinoLabsTools.rhp “Rhino Labs Tools” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/Export_X.rhp “X Export” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/export_ACAD.rhp “AutoCAD file export : export_ACAD” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/import_RAW.rhp “RAW Triangle Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/import_PLY.rhp “PLY - Polygon File Format Import” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/import_E57.rhp “E57 Import” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/PlugIns/export_STEP.rhp “STEP Export” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/export_3MF.rhp “export_3MF” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Import_glTF.rhp “Import glTF” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/MeshCommands.rhp “MeshCommands” 8.0.23186.12306
/Applications/RhinoWIP.app/Contents/PlugIns/import_STEP.rhp “STEP Import” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/MeshTools.rhp “MeshTools” 8.0.23186.1002
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/Applications/RhinoWIP.app/Contents/PlugIns/Import_M.rhp “Import_M” 8.0.23186.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/export_SVG.rhp “Export SVG” 8.0.23186.12306

Thanks a lot
Akash

Hi
to update: upon farther observations, the flickering while panning happens only once the definition gets to be a little larger. [if there are only a few components, then panning is smooth]
The redraw speed seems to be ok with this number of components… but it still flickers while panning.

Is this an expected behavior ?

thanks a lot
Akash